Closure properties of EOL-regular matrix languages.
Nalinakshi NirmalRaghavan RamaC. Sri Hari NagorePublished in: Bull. EATCS (1986)
Keyphrases
- closure properties
- context free
- expressive power
- context free grammars
- tree automata
- context sensitive
- conjunctive queries
- query language
- context dependent
- grammatical inference
- structural properties
- finite state
- first order logic
- knowledge based systems
- information retrieval
- natural language processing
- hidden markov models
- high level